Although most smartphones will display the standard site without any issues, it’s slow to load and navigation can take a long time. I just finished configuring the mobile view, which cuts down on network traffic and uses a more streamlined interface for mobile users. If it’s enabled, your phone should automatically redirect to the right page.
If you happen to have a smartphone, go to the homepage and check it out! I can only test it on my G1, so I’d like to find out which phones actually work and which do not.